Valve
Left 4 Dead 2
$19.99

Now Available on Mac & PC

Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008.

Left 4 Dead
$19.99

Now Available on Mac & PC

From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four

Portal 2
$29.99

New Price

"An Unforgettable Experience" - IGN

Counter-Strike: Source
$19.99

Now Available on Mac & PC

Just updated to include player stats, achievements, new scoreboards and more!

Portal
$9.99

Now Available on Mac & PC

Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most...

Team Fortress 2
Free to Play

Play It Now!

This game participates in Steam Trading Items from this game are tradable and can be viewed in your Inventory on your Steam Community Profile.

The Orange Box
$19.99

Now Available on Mac & PC

The Orange Box is a bundle that includes five titles from Valve: Half-Life 2; Half-Life 2:Episode 1; Half-Life 2: Episode Two; Team Fortress 2, the sequel

Day of Defeat: Source
$9.99

Now Available on Mac & PC

Valve's WWII Multiplayer Classic - Now available for Mac.

Left 4 Dead 2
$19.99

Now Available on Mac & PC

Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008.

Left 4 Dead
$19.99

Now Available on Mac & PC

From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four

New releases
Top Sellers
Portal 2

Portal 2

Action, Adventure - Released: Apr 18, 2011

Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.

$29.99

Left 4 Dead

Left 4 Dead

Action - Released: Nov 17, 2008

From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.

$19.99

Left 4 Dead 2

Left 4 Dead 2

Action - Released: Nov 16, 2009

Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South,...

$19.99

Half-Life 2: Deathmatch

Half-Life 2: Deathmatch

Action - Released: Sep 30, 2010

Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay. Toss a toilet at your friend today!

$4.99

Garry's Mod

Garry's Mod

Indie - Released: Sep 23, 2010

Garry's Mod is a physics sandbox. Unlike regular games there aren't any predefined aims or goals. We give you the tools and leave you to play. You spawn objects and weld them together to create your own contraptions - whether that's a car, a rocket, a catapult or...

$9.99

Alien Swarm

Alien Swarm

Action - Released: Jul 19, 2010

Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community. Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics.

Free

Day of Defeat: Source

Day of Defeat: Source

Action - Released: Jul 12, 2010

Day of Defeat offers intense online action gameplay set in Europe during WWII. Assume the role of infantry, sniper or machine-gunner classes, and more. DoD:S features enhanced graphics and sounds design to leverage the power of Source, Valve's new engine technology.

$9.99

Counter-Strike: Source

Counter-Strike: Source

Action - Released: Jun 23, 2010

THE NEXT INSTALLMENT OF THE WORLD'S # 1 ONLINE ACTION GAME Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.

$19.99

Half-Life 2: Episode Two

Half-Life 2: Episode Two

Action - Released: May 26, 2010

Half-Life® 2: Episode Two is the second in a trilogy of new games created by Valve that extends the award-winning and best-selling Half-Life® adventure. As Dr.

$7.99

Half-Life 2: Episode One

Half-Life 2: Episode One

Action - Released: May 26, 2010

Half-Life 2 has sold over 4 million copies worldwide, and earned over 35 Game of the Year Awards. Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17. Also features two multiplayer games.

$7.99